functions:
abort
abs
atexit
atof
atoi
atol
atoll
at_quick_exit
bsearch
calloc
div
exit
free
getenv
labs
ldiv
llabs
lldiv
malloc
mblen
mbstowcs
mbtowc
qsort
quick_exit
rand
realloc
srand
strtod
strtof
strtol
strtold
strtoll
strtoul
strtoull
system
wcstombs
wctomb
_Exit
functions (non-standard):
itoa
types:
div_t
ldiv_t
lldiv_t
size_t
macro constants:
EXIT_FAILURE
EXIT_SUCCESS
MB_CUR_MAX
NULL
RAND_MAX